*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    background: #05070d;
    color: #c3cada;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 17px;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

main {
    max-width: 860px;
    margin: 0 auto;
    padding: 64px 24px 32px;
}

h1,
h2 {
    color: #e8ecf4;
    font-weight: 600;
    letter-spacing: -0.01em;
    line-height: 1.2;
}

h1 {
    font-size: 44px;
    margin: 0 0 16px;
}

h2 {
    font-size: 26px;
    margin: 0 0 20px;
}

.hero {
    text-align: center;
    padding: 24px 0 48px;
}

.hero-sub {
    color: #c3cada;
    font-weight: 400;
    display: inline-block;
}

.tagline {
    font-size: 20px;
    color: #c3cada;
    margin: 0 0 28px;
    max-width: 620px;
    margin-left: auto;
    margin-right: auto;
}

.price {
    font-size: 18px;
    color: #e8ecf4;
    margin: 0 0 28px;
    font-weight: 500;
}

.btn {
    display: inline-block;
    background: #8195bc;
    color: #05070d;
    text-decoration: none;
    font-weight: 600;
    padding: 14px 28px;
    border-radius: 8px;
    font-size: 17px;
    transition: background-color 0.15s ease;
}

.btn:hover,
.btn:focus {
    background: #a8b4cc;
}

.primary-image {
    margin: 24px 0 56px;
}

.primary-image img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 12px;
    border: 1px solid #2a3345;
    box-shadow: 0 0 60px rgba(129, 149, 188, 0.12);
}

.description {
    margin: 0 0 64px;
}

.description p {
    margin: 0 0 20px;
}

.description strong {
    color: #e8ecf4;
    font-weight: 600;
}

section {
    margin-bottom: 56px;
}

.gallery-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.gallery figure {
    margin: 0;
}

.gallery img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 12px;
    border: 1px solid #2a3345;
}

.gallery figcaption {
    margin-top: 10px;
    font-size: 14px;
    color: #c3cada;
    text-align: center;
}

.what-you-get ul,
.requirements ul {
    padding-left: 20px;
    margin: 0;
}

.what-you-get li,
.requirements li {
    margin-bottom: 10px;
}

code {
    background: #0f141f;
    border: 1px solid #2a3345;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 14px;
    color: #e8ecf4;
    font-family: ui-monospace, "SF Mono", Consolas, "Liberation Mono", monospace;
}

.license p {
    margin: 0 0 16px;
}

.final-cta {
    text-align: center;
    padding: 24px 0 16px;
    margin-bottom: 0;
}

footer {
    max-width: 860px;
    margin: 0 auto;
    padding: 32px 24px 48px;
    border-top: 1px solid #2a3345;
    text-align: center;
    font-size: 14px;
    color: #c3cada;
}

footer p {
    margin: 16px 0 0;
}

@media (max-width: 640px) {
    main {
        padding: 40px 20px 24px;
    }

    h1 {
        font-size: 32px;
    }

    h2 {
        font-size: 22px;
    }

    .tagline {
        font-size: 17px;
    }

    .gallery-grid {
        grid-template-columns: 1fr;
    }

    .hero {
        padding: 16px 0 32px;
    }
}